Results 81 to 90 of about 40,881 (309)

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Specific Capacitance Characteristics of Carbons, Activated by Potassium Hydroxide

Фізика і хімія твердого тіла, 2016
This work is devoted to the study of the charge accumulation in the electric double layer on polarized electrode of the electrochemical systems. A series of samples of the nanoporous carbon material obtained from natural raw materials.
I. M. Budzulyak, B. I. Rachiy, V. M. Vashchynsky, M. V. Berkeschuk   +3 more
doaj   +1 more source

Moving towards high carrier mobility power devices in silicon and silicon carbide [PDF]

, 2016
This thesis reports on recent progress regarding the characterization, design and fabrication of modern power semiconductor devices in Silicon (Si) as well as in the promising wide band gap material Silicon Carbide (SiC).
Rossmann, Harald R.
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

CREATION AND RESEARCH OF THE NATIONAL STANDARD OF CAPACITANCE

Приборы и методы измерений, 2015
In 2008–2010 the Belorussian State Institute of Metrology established the national electric capacitance standard. The basic steps for creating a national standard are presented in this manuscript.
T. A. Kolomiets, E. A. Kazakova, T. G. Sosnovskaya   +2 more
doaj  

A Capacitance-to-Ground Measuring Method for Medium-Voltage Power Grid of a Ship Based on the Combination of High and Low Frequencies

Sensors
With the increase in capacity of large ship electric power systems, medium-voltage electric power systems have gradually become an inevitable choice. Among China’s large ships, the neutral point of the power system is usually grounded by high resistance,
Shuai Wang, Liang Chen, Zhikang Li, Zhenghe Zhao   +3 more
doaj   +1 more source

Modeling of direct tunneling gate current and gate capacitance in deep submicron MOSFETs with high-K dielectric.

, 2002
Scaling down of MOS device dimensions is accompanied by a decrease in gate-oxide thickness and an increase in substrate doping density. When gate oxide thickness becomes less than 2 nm, a substantial current follows through gate-oxide due to direct ...
Hakim, M. M. A.
core  

Complex Capacitance Analysis on Leakage Current Appearing in Electric Double-layer Capacitor Carbon Electrode [PDF]

, 2005
imaginary capacitance profiles(Cim vs. log f) were theoretically derived for a cylindrical pore and multiple pore systems of nonuniform pore geometry.
Yoon, Songhun, Jung, Yong-Ho, Oh, Seung M., Seung M. Oh, Bok H. Ka, Yong-Ho Jung, Songhun Yoon, Ka, Bok H., Jang, Jong H., Jong H. Jang   +9 more
core   +1 more source

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

Advanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov, Fabrizio Porrati, Florian Kronast, Riccardo Hertel, Pavlo Makushko, Olha Bezsmertna, Alexander Kuprava, Mohamad‐Assaad Mawass, Sven Barth, Michael Huth, Denys Makarov   +10 more
wiley   +1 more source